Fort Collins 7-day weather forecast

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December 15, 2025
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Fort Collins 7-day weather forecast

Stacker created the forecast for Fort Collins, Colorado using data from OpenWeather. This week's high is 60 °F on Tuesday, while the low is 27 °F on Sunday. There are expected to be 3 sunny days and rain on 2 days this week.

There are currently no weather alerts.

Monday, December 15

- High of 58 °F, low of 31 °F (16% humidity)
- Fair with a 0% chance of rain
- Light breeze (5 mph wind)
- Sunrise at 7:17 AM, sunset at 4:34 PM
1 / 6
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Tuesday, December 16

- High of 60 °F, low of 43 °F (30% humidity)
- Partly cloudy with a 0% chance of rain
- Gentle breeze (10 mph wind)
- Sunrise at 7:17 AM, sunset at 4:34 PM
2 / 6
Deborah Kolb // Shutterstock

Wednesday, December 17

- High of 60 °F, low of 41 °F (32% humidity)
- Partly cloudy with a 37% chance of rain (0 mm of rain)
- Near gale (35 mph wind)
- Sunrise at 7:18 AM, sunset at 4:34 PM
3 / 6
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Thursday, December 18

- High of 46 °F, low of 36 °F (16% humidity)
- Partly cloudy with a 0% chance of rain
- Fresh breeze (20 mph wind)
- Sunrise at 7:19 AM, sunset at 4:35 PM
4 / 6
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Friday, December 19

- High of 57 °F, low of 35 °F (28% humidity)
- Overcast with a 0% chance of rain
- Fresh breeze (22 mph wind)
- Sunrise at 7:19 AM, sunset at 4:35 PM
- New moon
5 / 6
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Saturday, December 20

- High of 54 °F, low of 32 °F (40% humidity)
- Mostly sunny with a 20% chance of rain (0 mm of rain)
- Near gale (35 mph wind)
- Sunrise at 7:20 AM, sunset at 4:36 PM
6 / 6
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Sunday, December 21

- High of 42 °F, low of 27 °F (40% humidity)
- Sunny with a 0% chance of rain
- Gentle breeze (9 mph wind)
- Sunrise at 7:20 AM, sunset at 4:36 PM

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